20644455

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{4603}}^1$

素因数の和:4647

約数の個数: 32

約数和(自身を含む): 37126656

約数和(自身を除く): 16482201

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 115, 195, 299, 345, 897, 1495, 4485, 4603, 13809, 23015, 59839, 69045, 105869, 179517, 299195, 317607, 529345, 897585, 1376297, 1588035, 4128891, 6881485, 20644455]

約数ペア:

[(1, 20644455), (3, 6881485), (5, 4128891), (13, 1588035), (15, 1376297), (23, 897585), (39, 529345), (65, 317607), (69, 299195), (115, 179517), (195, 105869), (299, 69045), (345, 59839), (897, 23015), (1495, 13809), (4485, 4603)]